[INFO] cloning repository https://github.com/AtkinsChang/derives
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AtkinsChang/derives" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAtkinsChang%2Fderives", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAtkinsChang%2Fderives'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86f49c4d8e959f2e84dd6162f8ca6935707b368a
[INFO] checking AtkinsChang/derives against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAtkinsChang%2Fderives" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AtkinsChang/derives on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AtkinsChang/derives
[INFO] finished tweaking git repo https://github.com/AtkinsChang/derives
[INFO] tweaked toml for git repo https://github.com/AtkinsChang/derives written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/AtkinsChang/derives already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn-mid v0.4.0
[INFO] [stderr]   Downloaded proc-macro-error v0.4.5
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e11670c715524f44da8ebe0b05c3c767f065cf3fc6c584117c2b534d8ab914b4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e11670c715524f44da8ebe0b05c3c767f065cf3fc6c584117c2b534d8ab914b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e11670c715524f44da8ebe0b05c3c767f065cf3fc6c584117c2b534d8ab914b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e11670c715524f44da8ebe0b05c3c767f065cf3fc6c584117c2b534d8ab914b4", kill_on_drop: false }`
[INFO] [stdout] e11670c715524f44da8ebe0b05c3c767f065cf3fc6c584117c2b534d8ab914b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 84b3b04858307dea68af5b0de7c116d8e108a88fafbc2226dd1ae5305bd3dde3
[INFO] running `Command { std: "docker" "start" "-a" "84b3b04858307dea68af5b0de7c116d8e108a88fafbc2226dd1ae5305bd3dde3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking synstructure v0.12.3
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v0.4.5
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.5
[INFO] [stderr]     Checking derives v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> tests/tests.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use derives::{Display, Error};
[INFO] [stdout]   |                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.02s
[INFO] running `Command { std: "docker" "inspect" "84b3b04858307dea68af5b0de7c116d8e108a88fafbc2226dd1ae5305bd3dde3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b3b04858307dea68af5b0de7c116d8e108a88fafbc2226dd1ae5305bd3dde3", kill_on_drop: false }`
[INFO] [stdout] 84b3b04858307dea68af5b0de7c116d8e108a88fafbc2226dd1ae5305bd3dde3